Valve



v(No Model.)

H. E. WELLS. VALVE.

UNITED STATES` v PATENT OFFICE.

HAMILTON E. VELLS, OF PORTSMOUTH, OHIO.

VALVE.

SPECIFICATION forming part of Letters Patent No. 563,946, dated July 14,1896.

Application filed August 19, 1895. serialNo. 559,758. (No model.)

To all whom it may concern:

Be it known that l, HAMILTON E. WELLS, a citizen of the United States,residing at Portsmouth, State of Ohio, have invented certain new anduseful Improvements in Valves, of which I do declare' the following tobe a full, clear, and exact description, reference being had to theaccompanying drawings, forming a part of this specification.

The present invention has for its object to provide a novel constructionof valve that shall be simple, durable, and cheap, that may be readilyadjusted to compensate for wear, and that shall overcome thedifficulties incident to globe and similar valves as now commonlyconstructed. This object 0f invention I have accomplished by the novelconstruction of valve hereinafter described,illustrated in theaccompanying drawings, and particularly pointed out in the claims at theend of this specification.

Figure l is a view in side elevation of my improved valve. Fig. 2 is aview in vertical section on line 2 2 of Fig. 3. Fig. 3 is a view inelevation with one section of the valvecasing removed. Fig. 4 is a viewin horizontal section on line 4 4 of Fig. 2. Fig. '5 is a detail centralsectional view of the lower portion of the globe-valve.

The inclosin g casing of myimproved valve consists of the sections A andA, that are formed with lateral flanges a and a', united bythrough-bolts a2. Each of the casing-sections A and A is formed with aport d3, to which are connected the sections B of the pipe in which thevalve is interposed. The ports a3 of the casing-sections will be formedof the same diameter as the interior of the pipe B, and one of theadvantages incident to my improved construction of valve is that thevalve-casing and valve will allow for an opening of the same diameter asthe pipe B, so that no obstruction of the pipe by the interposition ofthe valve will be had. Each of the casing-sections A and A is formedwith a seat 2 to receive the abutting part of the globe-valve O, thestem c of this valve extending upward through the cap A3, that isthreaded to engage the threaded upward eX- tensions A2 of thecasing-sections. This cap A3 serves not only to aid in holding thecasing-sections irmly together, but also serves to receive` the packinga, through which the stem c of the valve O passes. Preferably the innerface of each of the casing-sections will be formed with a shallow groovec to receive a packing strip c2 to guard against leakage.

In the preferred form of my invention the valve O and more or less ofits stem c, as more clearly shown in Fig. 3, are formed of twolongitudinal sections, and by preference each of these sections isprovided at its base with a projection c4, that sets within a seat c5,formed in the casing, as seen in Figs. 2 and 3, the valve-sections beingforced normally apart bythe washer R, setting over a stud r, and servingto insure a snug bearing and guard against leakage. At the upper end ofthe valve-stem c is a hand-wheel D, whereby the valve can be turned toopen and close it. The stem c of the valve O is hollow from end to end,and at the base of the stem each of the valve-sections is formed withaninclined surface, against which bears the inclined or wedge-shapedlower end of a spreader E, this spreader having connected thereto a stemc, that extends upwardly through the valvestem c and is provided at itsupper end with a hand-wheel e or other means whereby it may beconveniently turned.

The stem e of the spreader E has preferably throughout a portion of itslength screwthreads that engage with' corresponding threads formed uponthe interior of the valvestem c. The purpose ofthe spreader E is toseparate or spread the sections of the valve O, so as to secure a snuglit of the valve O against its seat and compensate for wear. The stem oof the valve is shown as provided with a suitable pin 5, (see Fig. 3,)that moves within a groove 6, formed in the neck of the valve-casing,the'groove and pin serving to limit the turning movement of the valve Cin manner well understood.

From the foregoing description it will be seen that when the valve is inthe open position shown in Fig. 2 it can be turned by means of thehand-wheel D, so as to cut off the flow of liquid through the valve.lVhen it is desired to tighten the valve O against its seat, as, forexample, to compensate for wear, the hand-wheel c will be turned, so asto cause the spreader E to move upward, and as the spreader E thus movesupward it will wedge IOO or spread outward thesections of the valveE,'causin g these valve-sections to bear snugly against their seats. Bymanipulating the hand-wheel e the valve C can be caused to bear againstits seat with any desired degree of force, and when the valve is to beshifted a reverse movement of the hand-wheel e will permit the sectionsto ease or free themselves from their seats, thus avoiding all wear inthe operation of the valve. So, also, with my improved construction ofvalve all danger of obstructions lodging between the valve and its seatis entirely avoided.

While I have shown what IV regard as the preferred form of my invention,it is manifest that the details of construction may be varied withinwide limits without departing from the spirit of the invention. Thus,for example, it is not essential, although preferable, that thevalve-sections of the valve C should be united at their top ends so longas the sections are so arranged that they can be spread apart. So, also,I have devised other forms of sprcaders which might be substituted forthe spreader E, and I therefore do not wish my invention to beunderstood as restricted to this particular construction of spreader.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l.. The combination with a suitable casing having a seat, of a valvewithin said seat, said valve being provided with an unobstructed bore oropening therethrough for passage of fiuid and bei ng formed ofexpansible sect-ions, a hollow stem extending from said sections throughthe casing, and a spreader located between said expansible sectionsabove the bore or opening of the valve and a stem exten din g from saidspreader through the valvestein and outside the casing, substantially asdescribed.

2. The combination with a suitable casing having a spherical seat, of aspherical valve within said seat, said valve being provided with anunobstructed bore or opening therethrough for passage of fluid and beingformed of expansible sections, a hollow stem extending from saidsections through the casin g, and a spreader located between saidexpansible sections above the bore or opening of the valve and a stemextending from said spreader through the valve-stein and outside thecasing, substantially as described.

3. The combination with a suitable valveextending outside the casing formanipulatf ing said spherical valve, and a second stein whereby saidspreader may be operated.

4t. The combination with a suitable casing, having a sphericalvalve-seat, of a spherical valve formed of expansible sections having anopening therethrough for the passage of iiuid and having interiorinclined surfaces and having a hollow stem, and a verticallymovablespreader so arranged as not to obstruct the bore or opening of saidvalve and engaging the interior inclined surfaces of the valve-sections,and having a stem extending through the hollow valve stem, suitablethreads being formed upon the valve-stein and spreader-stein,substantially as described.

5. The combination with a suitable casing, of a spherical valve formedof expansible sections, a hollow stem formed in piece with saidvalve-seetions, said valve-sections being provided with inclinedsurfaces at the base of said hollow stein and a spreader arrangedoutside the bore or opening of said valve and in position to engage saidinclined surfaces, and a stem for said spreader extending through thevalve-stem and provided with means whereby it may be manipulated,substantially as described.

G. The combination with a casing provided with a seat and formed ofseparable sections and means whereby said sections may be unitedtogether, of a valve within said seat, said valve being provided with anunobstructed bore or opening therethrough for passage of iiuid and beingformed of expansible sections, a hollow stem extending from saidsections through the casing and a spreaderloeated between saidexpansible sections above the bore or opening of the valve and a stemextending from said spreader through the valve-stem and outside thecasing, substantially as described.

HAMILTON E. WELLS. Titnesses J. R. I-IUGI-ins, WESLEY RIDENOUR.

IOO

